Finding the Fourth Proportional to 2,612.23, 3,604.89 and 1,433.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.23 : 3,604.89 = 1,433.28 : x
2. Step 2: Convert to fraction form
   2,612.23/3,604.89 = 1,433.28/x
3. Step 3: Cross multiply
   2,612.23x = 3,604.89 × 1,433.28
4. Step 4: Simplify right side
   2,612.23x = 5,166,816.74
5. Step 5: Solve for x
   x = 5,166,816.74/2,612.23
6. Step 6: Final answer
   x = 1,977.93